Building construction



C. H, BLACKALIL.

BUILDING CONSTRUCTION.

ArPL'lcATloN FILED APR. 13, 1921.

. Patented wat. 3, 1922.,

2 SHEETS-SHEET 1.

C. H. BLACKALL.

BUILDING CONSTRUCTION.

ArPucATmN FILED APR.|3,1921.

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Patented Oct 3 il QED ennnnirren n. ernennen, or caiuniainen,nassncnusnrrs.

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To all 'whom it may concern:

Be it known that l, CLAnnNcn l-l. BLACK- ALL, a citizen or the UnitedStates'otlmerica, and resident ot Cambridge, in the county ot Middlesexand State or Massachusetts., have invented new and useful llmprovementsin Building Construction, of which the iollowing is a specification.

This invention relates to building coinbinations and more particularlyto construc. tions whereby chairs, tables or other isolated or groupedobjects may be adjustably 'attached to doors, walls, ceilings or otherportions oit' a building formed entirely or' in part oit concrete orother cast, moulded or troweled compositions.

linlastening theatre chairs to a concrete iloor, lor example, it isdesirable to align the chairs either in straight lines orA in curvesandV also to space them uniitoriiily apart.

ln the case of sloping iloors it is also necessary to lasten the chairsin an inclined position relative to the Jdoor in order to have themproperly positioned relative to -the horizontal.

llereto'fore it has been customary to drill holes in the concrete,insert expansion bolts into theholes and then screw into the expansionbolts. Unless the holes are drilled with extreme accuracy, they do notmatch the holes in the le s of the chairs, and after the holes are driled it is impossible to adjust the positions ot the chairs. Moreover, theconcrete is weakenedby drilling the holes and the expansion bolts tendto pull out.

lhe objects of the present invention are to overcome the difficultiesincident to prior construction and to 'provide a construction wherebythe chairs or other articles are tirinly -but adjustably held inposition, whereby the door or other surface is not mal teriallyweakened, whereby whereby the articles may be readily adjusted andattached in proper alignment and prop'- erly spaced, either in ahorizontal or inclined door, and either in curved or straight lines.

According to this invention there is einployed a series of anchors orbolts connected to a continuous slotted tapped or curved piece of: steelor other material which is set in the cast, moulded or troweled surfacecl concrete,l or other composition of combined materials, so as to serveas guides for the the attaching means is securely anchored in the floorand v levels of the nished door or other surface and also as attachmentsfor adjustably securing furniture or other objects., With myconstruction the objects maybe attached by a singlebolt or otherfitting, the iitting being similar for all levels or pitch of floor andso arranged as to permit of play crosswise andtrom iront to back to takeup any inequalities in setting the inserts in the concrete or othermaterial.

ln order to disclose the nature of the construction l have illustratedit as applied to a theatre door and a portion of a theatrel chairattached thereto according to this invention;

lF41 ig. 2's a vertical longitudinal section through the construction;

liig. 3 is a vertical transverse section on line 3-3 of Fig. 2'; i Y

Figs 4C, 5 and 6 are perspective views similar to llig. 1 showingmodifications;

llig. 4a is an enlarged end view of channel andassociated parts shown inllig. l; and

Figs. 7 and 8 are plan and elevation views, respectively, of a differentapplication of the invention.

ln the particular embodiment of the invention illustrated in Figs. l, 2and 3, 1 represents a floor of cast or molded material, such asconcrete, the floor having steps 2 as in theatres, 3 and 4c representlegs of a chair and 5 represents a wood form upon which the floor ismolded. An elongated tubular member 6 in the form of a channel is builtinto the door, the channel member having overhanging portions in theform oil inturned anges 7 separated by slot 8, the

`flanges being substantially Hush with lthe top surface ol the licor.The channel member not only serves as attachment means but also to guidethe level in forming the floor surtace. rlhe channel member may beanchoredin the door by means of straps 9 extending over the channelmember and thence downwardly to the iloor. rlFhe straps 9 have feet l()which serve temporarily to attach the anchor to the woodl form 5 whilethe iloor is being cast and which also serve to prevent the anchor frombeing pulled out after the construction is finished. Associated with thechair legs is a yoke 11 having down-turned bifurcated legs adapted tointerit with the feet of the chair legs and having a .slot throughoutits widened central portion. Fitting over this yoke is a Ushaped clip 13provided with a centre openmg.

A bolt 14 having a head 15 disposed in the channel G extends upwardlythrough the slots 8 and 12 and through the clip 13, nuts 16 beingthreaded on the upper end of the bolt. The head 15 of the bolt iselongated as shown in Figs. 2 and 3 so as to underlie the overhangingflanges 7 of the channel 6 in normal position and so as to be removablethrough the slot 8 when turned 90.

Insecuring a chair in position, the yoke 11 is interengaged with thechair feet, the clip 13 is place over the yoke 11, the head of the bolt14 is placed in the channel 6, the shank of the bolt is extendedupwardly through the yoke 11 and clip 13, and the nuts 16 are thenthreaded on the upper end of the bolt. Before the nuts are tightened,the chair is adjusted .in the proper position, the bolt 14 sliding 1nthe channel 6 for longitudinal adjustment and sliding in slot 12 fortransverse adjustment. When the chair is in proper position the nuts areti htened.

f '1t is desired to have no project1ons extending above the surface ofthe floor,

the strap 9 may be omitted or replaced with anchoring means which do notextend above the floor surface. If the chairs (or other articles) are tobe arranged in curves, the channel 6 will be curved at the desireddegree of curvature.

The modification shown in Figs. 4 and 4a is similar tothat shown inFigs. 1 to 3 but differs in the following particulars. The channelmember 6 is narrower at the top than at the bottom and the flanges,instead of merely being turned in 90 as in the preceding figures arefolded inwardly through approximately 180 and then folded outwardlyagain through approximately 180o, s that each flange comprises twosubstantially vertical portions lying side' by side. An importantfeature of this construction consists in that only narrow portions ofthe beam are exposed at the floor surface, namely the portions joiningthe flanges with the sides through substantially 180 folds. Anotherfeature of this modification is that the attaching bolt 14 engages theflanges 7 edgewise, instead of fiatwise as in Fig. 1, thereby affordinggreater strength and rigidity. Another feature shown in Figs. 4 and 4,which is not shown in Figs. 1 to 3, consists in bending the strap 9inwardly beneath the channel 6', to form shoulders 17 adapted to supportthe channel 6' on opposite sides while the concrete is being built up.It is to be understood that this feature, may be employed in theconstruction shown in Figs.

1 to 3. In Fig. 4 the yoke 11 is formed integrally with the chair legsinstead of deformed of two straps 18 and 19, the straps being bent at20, 21, etc. to hook over the flanges on the chair legs. In thisconstruction the U-shaped clip 13 also functions to hold the two straps18 and 19 together.

The modification shown in Fig. 6 differs from that shown in Fig. 5 inthat the yoke comprises two angle-iron pieces 22 and 23 havinghorizontal portions resting on the chair feet and vertical portionsextending upwardly along the chair legs. In this construction, as 1n theconstruction of Fig. 5, the clip 13 holds the two parts of the yoketogether.

In the event that it is desired to -secure articles in other than astraight line, as for example in fastening theatre seats in a curvedrow, the channel members are made in sections and joined together asillustrated in Figs. 7 and 8, where 24 and 25 designate two adjacentsections of the channel. These sections are joined by means of a strap26 which is riveted or bolted through the under side of the channel 24as indicated at 27 and is detachably connected to the channel 25 bymeans of a lug 28 fast in the other end of the strap 26 and extendingupwardly through an openin in the bottom of the channel 25. As s own,the ends of the channel members are preferably beveled so that the maybe set close together at an angle. bviously this angle can be readilyadjusted in attaching the channels.

I claim:

1. A building construction comprising a cast surface, a channel memberprovided with inturned flanges separated by a slot and east in thesurface with the inturned flanges substantially flush with the surface,and an anchor member for said channel member having a portion bridgingsaid slot and having means forsupporting said first named member whilesaid surface is being cast.

2. A building construction comprising a. cast surface, a channel memberprovided with inturned flanges separated b a slot and cast in thesurface with the inturned flanges substantially flush with the surface,and a member having a portion bridging the slot in said first namedmember for supporting the latter while said surface is bemg cast.

3. A building construction comprising a. cast surface, a channel memberprovided with inturned flanges separated by a slot and cast in thesurface with the inturned flanges substantially flush with the surface,

1 ,ascesi ta and a member folded over said channel member for supportingthe latter While said l'flanges substantially flush with the surface,

and a member folded over said channel member and having shoulders forsupporting the latter While said surface is being cast.

5. A building construction comprising a cast surface, a channel memberprovided With inturned fianges separated by a slot and cast in thesurface with the inturned flanges substantially flush with the surface,and a strap member bent about said channel member and having legs tosupport the latter while said surface is being cast, said legs beingimbedded in said surface to anchor said channel member in place.

6. ln a building construction, attachment means for adjustably fasteningarticles to the building comprising slotted members arranged on thearticle and building respectively with their slots extendingtransversely of each other, and a connecting device eX- tendingI throughsaid slots with portions overhanging said members.

7. ln a building construction, attachment means for adjustably fasteningarticles such as chairs or the like to a cast floor comprising achannel, provided with inturned flanges separated by a slot, cast in thefloor with the flanges substantially flush with the floor surface, ananchor arranged on the article having a slot extending transversely ofsaid channel, and a connecting device eX- tending through said slots foradjustably connecting the channel and anchor together.

8. lfn a building construction, attachment means for adjustablyfastening chairs to a floor comprising fastening means anchored in thefloor, and a yoke connecting with the chair feet at its ends andattached to said fastening means intermediate its ends.

9. In a building construction, attachment means for adjustably fasteningchairs to a floor comprising a yoke connecting with the chair feet atits ends, and means for attaching the yoke to a floor intermediate itsends.

10. ln a building construction, attachment means for adjustablyfastening chairs to a floor comprising a series of channels set in thefloor endete-end at angles to each other, means connecting the ends ofsaid channels together to prevent endwise movement, and means forattaching chairs to said channels.

1l. ln a building construction, attachment means for fastening chairs toa floor comprising a series of elongate anchors set in the floorend-to-end at angles to each other, and means for pivotally joining saidanchors together so that said angles maybe adjusted.

12. lfn a building construction, attachment means for adjustablyfastening chairs to a fioor comprising a yoke connected with the chairfeet at its ends, and means including a slot in said yoke intermediateits ends for attaching the yoke to the floor.

1B. ln a building construction, attachment means for adjustablyfastening chairs or the like to a cast floor comprising a channel,provided with inturned flanges separated lby a slot, cast in the floorwith the flanges substantially flush with the door surfaces, a yokeconnecting the chair feet at its ends, and means for attaching the yokeintermediate its ends to said channel member.

Signed b me at Boston, Massachusetts, this elevent day of April, 1921.

CLARENCE H. BLACKALL.

